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// Copyright 2016 The Bazel Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.devtools.build.lib.rules.android;
import com.google.common.base.Function;
import com.google.common.base.Functions;
import com.google.common.base.Joiner;
import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Iterables;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.actions.ParameterFile.ParameterFileType;
import com.google.devtools.build.lib.analysis.RuleConfiguredTarget.Mode;
import com.google.devtools.build.lib.analysis.RuleContext;
import com.google.devtools.build.lib.analysis.actions.ActionConstructionContext;
import com.google.devtools.build.lib.analysis.actions.CustomCommandLine;
import com.google.devtools.build.lib.analysis.actions.SpawnAction;
import com.google.devtools.build.lib.collect.nestedset.NestedSet;
import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder;
import com.google.devtools.build.lib.vfs.PathFragment;
import java.util.ArrayList;
import java.util.List;
/** Builder for creating $android_resource_parser action. */
public class AndroidResourceParsingActionBuilder {
private static final ResourceContainerToArtifacts RESOURCE_CONTAINER_TO_ARTIFACTS =
new ResourceContainerToArtifacts();
private static final ResourceContainerToArg RESOURCE_CONTAINER_TO_ARG =
new ResourceContainerToArg();
private final RuleContext ruleContext;
private LocalResourceContainer primary;
private Artifact output;
private ResourceContainer resourceContainer;
/**
* @param ruleContext The RuleContext that was used to create the SpawnAction.Builder.
*/
public AndroidResourceParsingActionBuilder(RuleContext ruleContext) {
this.ruleContext = ruleContext;
}
/**
* Set the resource container to parse.
*/
public AndroidResourceParsingActionBuilder setParse(LocalResourceContainer primary) {
this.primary = primary;
return this;
}
/**
* Set the artifact location for the output protobuf.
*/
public AndroidResourceParsingActionBuilder setOutput(Artifact output) {
this.output = output;
return this;
}
/** Set the primary resources. */
public AndroidResourceParsingActionBuilder withPrimary(ResourceContainer resourceContainer) {
this.resourceContainer = resourceContainer;
return this;
}
private static class ResourceContainerToArg implements Function<LocalResourceContainer, String> {
public ResourceContainerToArg() {
}
@Override
public String apply(LocalResourceContainer container) {
return new StringBuilder()
.append(convertRoots(container.getResourceRoots()))
.append(":")
.append(convertRoots(container.getAssetRoots()))
.toString();
}
}
private static class ResourceContainerToArtifacts
implements Function<LocalResourceContainer, NestedSet<Artifact>> {
public ResourceContainerToArtifacts() {
}
@Override
public NestedSet<Artifact> apply(LocalResourceContainer container) {
NestedSetBuilder<Artifact> artifacts = NestedSetBuilder.naiveLinkOrder();
artifacts.addAll(container.getAssets());
artifacts.addAll(container.getResources());
return artifacts.build();
}
}
private static String convertRoots(Iterable<PathFragment> roots) {
return Joiner.on("#").join(Iterables.transform(roots, Functions.toStringFunction()));
}
public ResourceContainer build(ActionConstructionContext context) {
CustomCommandLine.Builder builder = new CustomCommandLine.Builder();
NestedSetBuilder<Artifact> inputs = NestedSetBuilder.naiveLinkOrder();
inputs.addAll(ruleContext.getExecutablePrerequisite("$android_resource_parser", Mode.HOST)
.getRunfilesSupport()
.getRunfilesArtifactsWithoutMiddlemen());
Preconditions.checkNotNull(primary);
builder.add("--primaryData").add(RESOURCE_CONTAINER_TO_ARG.apply(primary));
inputs.addTransitive(RESOURCE_CONTAINER_TO_ARTIFACTS.apply(primary));
List<Artifact> outs = new ArrayList<>();
Preconditions.checkNotNull(output);
builder.addExecPath("--output", output);
outs.add(output);
SpawnAction.Builder spawnActionBuilder = new SpawnAction.Builder();
// Create the spawn action.
ruleContext.registerAction(
spawnActionBuilder
.useParameterFile(ParameterFileType.UNQUOTED)
.addTransitiveInputs(inputs.build())
.addOutputs(ImmutableList.copyOf(outs))
.setCommandLine(builder.build())
.setExecutable(
ruleContext.getExecutablePrerequisite("$android_resource_parser", Mode.HOST))
.setProgressMessage("Parsing Android resources for " + ruleContext.getLabel())
.setMnemonic("AndroidResourceParser")
.build(context));
return resourceContainer.toBuilder().setSymbols(output).build();
}
}
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